Table 2.
Angiographic and procedure outcome between the two groups.
| Without RCA intervention (n = 61) | With RCA intervention (n = 174) | p value | |
|---|---|---|---|
| SYNTAX score values | 33.96 ± 11.52 | 33.26 ± 9.65 | 0.523 |
| ≤22 | 7 (11.5%) | 14 (8%) | 0.419 |
| 23–32 | 27 (44.3%) | 73 (42.0%) | 0.754 |
| ≥33 | 27 (44.3%) | 87 (50.0%) | 0.440 |
|
| |||
| Number of diseased vessels | 2.80 ± 0.40 | 2.83 ± 0.42 | 0.626 |
| LM with single vessel | 0 (0%) | 3 (1.8%) | 0.571 |
| LM with two vessels | 12 (20.3%) | 23 (13.5%) | 0.223 |
| LM with triple vessels | 49 (80.3%) | 148 (85.1%) | 0.388 |
|
| |||
| PCI procedure | |||
| BMS at LM | 16 (26.2%) | 35 (20.1%) | 0.319 |
| IVUS-guided | 38 (62.3%) | 126 (72.4%) | 0.139 |
|
| |||
| Total stent number in LM | 1.31 ± 0.47 | 1.28 ± 0.49 | 0.681 |
| Single stent | 42 (68.9%) | 128 (73.6%) | 0.479 |
| Two stents | 19 (31.1%) | 43 (24.7%) | 0.326 |
| Three stents | 0 (0%) | 3 (1.7%) | 0.570 |
|
| |||
| Two stent technique | |||
| SKS | 1 (1.6%) | 2 (1.1%) | 1.000∗ |
| Crushed | 3 (4.9%) | 4 (2.3%) | 0.380∗ |
| T-stent | 6 (9.8%) | 23 (13.2%) | 0.489 |
| Culottes | 9 (14.8%) | 17 (9.8%) | 0.286 |
|
| |||
| RCA vessel classification | |||
| Multiple lesions | 39 (63.9%) | 92 (52.9%) | 0.134 |
| Lesion numbers (median) | 2 (1–2.5) | 2 (1-2) | 0.055 |
| Focal disease | 14 (23.0%) | 27 (15.5%) | 0.188 |
| Tubular disease | 5 (8.2%) | 27 (15.5%) | 0.151 |
| Diffuse disease | 42 (68.9%) | 120 (69.0%) | 0.987 |
|
| |||
| RCA lesion locations | |||
| Primary | 29 (47.5%) | 94 (54.0%) | 0.383 |
| Mid | 31 (50.8%) | 83 (47.7%) | 0.675 |
| Distal | 27 (44.3%) | 71 (40.8%) | 0.637 |
Data are presented as the mean ± standard deviation, n (%), and median (IQR). ∗Fisher's exact test. BMS = bare-metal stent; IVUS = intravascular ultrasound; LM = left main; PCI = percutaneous coronary intervention; RCA = right coronary artery; and SKS = simultaneous kissing-stents.